Muting and unmuting audio when autoplaying are available.

app/src/main/java/ml/docilealligator/infinityforreddit/Adapter/PostRecyclerViewAdapter.java

@@ -13,6 +13,7 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.FrameLayout;
+import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.ProgressBar;
 import android.widget.RelativeLayout;
@@ -37,6 +38,10 @@ import com.bumptech.glide.load.engine.GlideException;
 import com.bumptech.glide.request.RequestListener;
 import com.bumptech.glide.request.RequestOptions;
 import com.bumptech.glide.request.target.Target;
+import com.google.android.exoplayer2.metadata.Metadata;
+import com.google.android.exoplayer2.source.TrackGroupArray;
+import com.google.android.exoplayer2.text.Cue;
+import com.google.android.exoplayer2.trackselection.TrackSelectionArray;
 import com.google.android.exoplayer2.ui.AspectRatioFrameLayout;
 import com.google.android.exoplayer2.ui.PlayerView;
 import com.google.android.material.card.MaterialCardView;
@@ -44,6 +49,8 @@ import com.libRG.CustomTextView;
 
 import org.greenrobot.eventbus.EventBus;
 
+import java.util.List;
+
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import im.ene.toro.CacheManager;
@@ -51,6 +58,7 @@ import im.ene.toro.ToroPlayer;
 import im.ene.toro.ToroUtil;
 import im.ene.toro.exoplayer.ExoCreator;
 import im.ene.toro.exoplayer.ExoPlayerViewHelper;
+import im.ene.toro.exoplayer.Playable;
 import im.ene.toro.media.PlaybackInfo;
 import im.ene.toro.widget.Container;
 import jp.wasabeef.glide.transformations.BlurTransformation;
@@ -1301,7 +1309,10 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
     public void onViewRecycled(@NonNull RecyclerView.ViewHolder holder) {
         super.onViewRecycled(holder);
         if (holder instanceof PostBaseViewHolder) {
-            if (holder instanceof PostImageAndGifAutoplayTypeViewHolder) {
+            if (holder instanceof PostVideoAutoplayViewHolder) {
+                ((PostVideoAutoplayViewHolder) holder).muteButton.setImageDrawable(mActivity.getDrawable(R.drawable.ic_mute_24dp));
+                ((PostVideoAutoplayViewHolder) holder).muteButton.setVisibility(View.GONE);
+            } else if (holder instanceof PostImageAndGifAutoplayTypeViewHolder) {
                 mGlide.clear(((PostImageAndGifAutoplayTypeViewHolder) holder).imageView);
                 ((PostImageAndGifAutoplayTypeViewHolder) holder).imageView.setScaleType(ImageView.ScaleType.FIT_START);
                 ((PostImageAndGifAutoplayTypeViewHolder) holder).imageView.getLayoutParams().height = FrameLayout.LayoutParams.WRAP_CONTENT;
@@ -1452,9 +1463,7 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
             this.saveButton = saveButton;
             this.shareButton = shareButton;
 
-            scoreTextView.setOnClickListener(view -> {
+            scoreTextView.setOnClickListener(null);
-                //Do nothing in order to prevent clicking this to start ViewPostDetailActivity
-            });
 
             if (mVoteButtonsOnTheRight) {
                 ConstraintSet constraintSet = new ConstraintSet();
@@ -1520,10 +1529,13 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
 
             userTextView.setOnClickListener(view -> {
                 if (canStartActivity) {
-                    canStartActivity = false;
+                    Post post = getItem(getAdapterPosition());
-                    Intent intent = new Intent(mActivity, ViewUserDetailActivity.class);
+                    if (post != null) {
-                    intent.putExtra(ViewUserDetailActivity.EXTRA_USER_NAME_KEY, getItem(getAdapterPosition()).getAuthor());
+                        canStartActivity = false;
-                    mActivity.startActivity(intent);
+                        Intent intent = new Intent(mActivity, ViewUserDetailActivity.class);
+                        intent.putExtra(ViewUserDetailActivity.EXTRA_USER_NAME_KEY, post.getAuthor());
+                        mActivity.startActivity(intent);
+                    }
                 }
             });
 
@@ -1835,6 +1847,8 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
         AspectRatioFrameLayout aspectRatioFrameLayout;
         @BindView(R.id.player_view_item_post_video_type_autoplay)
         PlayerView videoPlayer;
+        @BindView(R.id.mute_exo_playback_control_view)
+        ImageButton muteButton;
         @BindView(R.id.bottom_constraint_layout_item_post_video_type_autoplay)
         ConstraintLayout bottomConstraintLayout;
         @BindView(R.id.plus_button_item_post_video_type_autoplay)
@@ -1881,6 +1895,18 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
                     shareButton);
 
             aspectRatioFrameLayout.setOnClickListener(null);
+
+            muteButton.setOnClickListener(view -> {
+                if (helper != null) {
+                    if (helper.getVolume() != 0) {
+                        muteButton.setImageDrawable(mActivity.getDrawable(R.drawable.ic_mute_24dp));
+                        helper.setVolume(0f);
+                    } else {
+                        muteButton.setImageDrawable(mActivity.getDrawable(R.drawable.ic_unmute_24dp));
+                        helper.setVolume(1f);
+                    }
+                }
+            });
         }
 
         void bindVideoUri(Uri videoUri) {
@@ -1903,6 +1929,33 @@ public class PostRecyclerViewAdapter extends PagedListAdapter<Post, RecyclerView
         public void initialize(@NonNull Container container, @NonNull PlaybackInfo playbackInfo) {
             if (helper == null) {
                 helper = new ExoPlayerViewHelper(this, mediaUri, null, mExoCreator);
+                helper.addEventListener(new Playable.EventListener() {
+                    @Override
+                    public void onTracksChanged(TrackGroupArray trackGroups, TrackSelectionArray trackSelections) {
+                        if (!trackGroups.isEmpty()) {
+                            for (int i = 0; i < trackGroups.length; i++) {
+                                String mimeType = trackGroups.get(i).getFormat(0).sampleMimeType;
+                                if (mimeType != null && mimeType.contains("audio")) {
+                                    helper.setVolume(0f);
+                                    muteButton.setVisibility(View.VISIBLE);
+                                    break;
+                                }
+                            }
+                        } else {
+                            muteButton.setVisibility(View.GONE);
+                        }
+                    }
+
+                    @Override
+                    public void onMetadata(Metadata metadata) {
+
+                    }
+
+                    @Override
+                    public void onCues(List<Cue> cues) {
+
+                    }
+                });
             }
             helper.initialize(container, playbackInfo);
         }

app/src/main/java/ml/docilealligator/infinityforreddit/Fragment/PostFragment.java

@@ -47,6 +47,9 @@ import javax.inject.Named;
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import im.ene.toro.exoplayer.ExoCreator;
+import im.ene.toro.media.PlaybackInfo;
+import im.ene.toro.media.VolumeInfo;
+import im.ene.toro.widget.Container;
 import ml.docilealligator.infinityforreddit.Activity.BaseActivity;
 import ml.docilealligator.infinityforreddit.Activity.FilteredThingActivity;
 import ml.docilealligator.infinityforreddit.Activity.MainActivity;
@@ -78,6 +81,9 @@ import ml.docilealligator.infinityforreddit.Utils.SharedPreferencesUtils;
 import ml.docilealligator.infinityforreddit.Utils.Utils;
 import retrofit2.Retrofit;
 
+import static im.ene.toro.media.PlaybackInfo.INDEX_UNSET;
+import static im.ene.toro.media.PlaybackInfo.TIME_UNSET;
+
 
 /**
  * A simple {@link Fragment} subclass.
@@ -564,6 +570,11 @@ public class PostFragment extends Fragment implements FragmentCommunicator {
 
         mPostRecyclerView.setAdapter(mAdapter);
         mPostRecyclerView.setCacheManager(mAdapter);
+        mPostRecyclerView.setPlayerInitializer(order -> {
+            VolumeInfo volumeInfo = new VolumeInfo(true, 0f);
+            return new PlaybackInfo(INDEX_UNSET, TIME_UNSET, volumeInfo);
+        });
+
         mPostViewModel.getPosts().observe(this, posts -> mAdapter.submitList(posts));
 
         mPostViewModel.hasPost().observe(this, hasPost -> {

app/src/main/java/ml/docilealligator/infinityforreddit/Post/Post.java

@@ -514,6 +514,6 @@ public class Post implements Parcelable {
         if (!(obj instanceof Post)) {
             return false;
         }
-        return ((Post) obj).getFullName().equals(fullName);
+        return ((Post) obj).id.equals(id);
     }
 }

app/src/main/java/ml/docilealligator/infinityforreddit/Post/PostDataSource.java

@@ -248,7 +248,6 @@ public class PostDataSource extends PageKeyedDataSource<String, Post> {
                                             nextPageKey = lastItem;
                                         }
 
-                                        int currentPostsSize = postLinkedHashSet.size();
                                         if (newPosts.size() != 0) {
                                             postLinkedHashSet.addAll(newPosts);
                                             callback.onResult(new ArrayList<>(newPosts), null, nextPageKey);

app/src/main/res/layout/exo_autoplay_playback_control_view.xml

@@ -26,7 +26,9 @@
         <ImageButton
             android:id="@+id/mute_exo_playback_control_view"
             style="@style/ExoMediaButton"
-            android:layout_alignParentEnd="true"/>
+            android:src="@drawable/ic_mute_24dp"
+            android:layout_alignParentEnd="true"
+            android:visibility="gone" />
 
     </RelativeLayout>